list = [1,2,3,4,5,6,7]
print(list)
print('-'*20)

list[1] = 5
print(list)
print('-'*20)

list = [1,2,3,4,5,6,7]
list.reverse()
print(list)
print('-'*20)

print(list[::-1])
print(list[::])
print('-'*20)

list = [12,43,25,1,16,36,73]
print(list)
list.sort(reverse=False)
print(list)
print('-'*20)

list = [12,43,25,1,16,36,73]
print(list)
list = sorted(list,reverse=True)
print(list)
print('-'*20)

